Glass-furnace.



No. 699,972. Patented May l3, I902.

J. P. PUTALLAZ. GLASS FURNACE.

' (Application filed Jan. 15, 1901. (No Model.) 2 Sheets-Sheet I.

mvmroi? ATTORNEYS we NORRIS PETER c0. PNOTO-LITHO., wnsmnm'cu. n. c.

No. 699,972. Patented May l3, I902.

' J. P. PUTALLAZ.

GLASS FURNACE.

(Application filed Jan. 15, 1901. (No Model.) 2 Sheets-Sheet 2.

WITNESSES I By Q Qf/IVVE/VTOR I k THE NORRIS vz'rzns co. PNOTQLITNQ, WASHINGTON, n. c.

UNITED STATES" P TENT OFFICE.

JEAN PIERRE PUTALLAZ, OF BROOKLYN, NEW YORK.

GLASS-FURNACE.

srncrrrcnrron forming part of Letterslatent No. 699,97 dated May 13, 1902- Application filed January 15, 1901. Serial No. 43,350. (No model.)

To all whom itmayooncemh n v Be it known that LJEAN PIERRE PUTALLAZ, a citizen of Switzerland, residing'at Brooklyn, in the county of Kings and State of New York, have inventedcertain new and useful Improvements in Glass-Furnaces, of which the following is a full andcomplete specification,such as will enable those skilled in the art to which it ap'pertains to make and use the same.

This invention relates' to glass furnaces, and the object thereof is to provide an improved furnace of this class for use in treating glass for various purposes, and particularly for use in the process of treating glass in the manufacture of colored articles of this material; and with this and other objects in view the invention consists. in a furnace of the class specified constructed as hereinafter describedand claimed. I

The invention is fully disclosed in the following specification, of which the accompanyi'ng drawings form a part, in which the sepa-' rate parts of my improvement are designated by the same reference characters in each of the views, and in which- Figure 1 is a front end elevation of a furnace constructed according to my invention; Fig. 2, a longitudinal section thereof, and Fig. 3 a central transverse vertical section of my improved glass-furnace on an enlarged scale. i

In the practice of my invention I provide a furnace of the class specified, comprising a base 5, composed'of any suitable material, side walls 6, and a top 7, which may also be composed of any suitable material, and the furnace-body thus formed is divided horizontally and centrally by a partition 8, which forms the bottom of the furnace proper and by means of which the furnace-chamber 9 is formed, and the partition 8 is composed of fire-brick or other suitable material, and centrally of the top thereof is formed a chamber or recess 9, adapted toreceive a Verticallymovable plate 10,composed of material which will not bedestructively affected by heat,

. and the vertically-movable plate 10 rests on a support 11 on a vertically-movable bar 12, pivotally connected with the inner end of a lever 13, which passes forwardly and lately ally through an opening in the front of the furnace, as shown in 14, and at the outer side wall of which is a recess 15, which is adapted to receive said lever and hold the outer end thereof in a depressed position.

The support 11 may be connected with the vertically-movable member 12, and the plate 1.0 may be connected with the support 11, and the bottom portion of the partition 8, which forms the bottom of the furnace chamber proper, is provided with an opening 16, adapted to receive the support 11, and the Vertically movable member 12 passes loosely through a guide 17, mounted on a base 18, and when the plate 10 is inits'lowest position the top thereof is flush'with the top surface ofthe partition 8, which constitutes the floor of the furnace-chamber, and't-he support ll'rests on the guide 17, this position of the parts being shown in Fig. 1, while the plate 10 is shown in its raised positionin 'ihe bottom chamber of the furnace below the partition 8 is adapted to be closed at the front end by a sliding door 19, and the furnace-chamber is. provided at the front end with hinged'doors 2O, one of which is shown in full lines in Fig. 2 and both of which are indicated in dotted lines in Fig.1, and arranged over the front end'of the furnaceohamber is a hollowcone-shaped casing 21, the

.bottom portion of which is open andprovided at intervals with gratings 22, and the front wall of the casing 21 is provided forwardly of each of the gratings 22 with 'an opening 23.

The bottom of the furnace-chamber is also provided at the opposite sides with tracks or ways 24:, and these tracks or ways are projected both at the front and rear end of said furnace-chamber and are designed toreceive cars 25, Whichare employed at both ends of the furnace. The platform 26 of the rear car is preferably slightly below the plate 10 when the latter is in its elevated position, while the platform of the front car is preferably about flush with the top of said plate 10 or may be slightly higher. The rear end of the furnacechamber is preferably open, but may be closed by doors, if desired.

At the right-hand side of the furnace-chamber and at each end thereof is avertical wall 27, between which is a longitudinal space 28, (indicated in dotted lines in Fig. 1 and shown ICO in full lines in Fig. 2 and shown in cross-seetion in Fig. 3,) and the bottom of this space extends, preferably, slightly below the top of the horizontal partition 8, and a fuel-supply pipe 29 passes into this space through the front wall of the furnace, and in practice oil or gas is fed into the space 28 through the tube 29 and is burned in said space, and the flame or heat from said space entirely fills the furnace-chamber, and when the furnace is in operation radiated heat from the furnacechamber passes n p from the front end thereof through the casing 21, and the interior of said casing 21 is thus heated to aslight extent, and when the front doors of the furnace are open a slight amountof heat will escape therefrom, and a portion thereof will pass upwardly through the casing 21. In practice the glass to be treated, which is usuallyin the form of tubular cylinders 30, is placed on the gratings 22 through the openings 23 in the casing 21, and the tubular cylinders are preferably split at one side, as shown in Fig. 1, and the split side thereofis directed upwardly when said cylinders are placed on the gratings 22. The placing of the glass cylinders on the grating 22 in the manner described is only for the purpose of slightly heating the same, so as to get them in condition for being put into the furnace, and at the proper time the said cylinders are removed from said gratings and are placed on the front car 25, which is drawn out for this purpose, this removal of said cylinders being accomplished in the usual manner by means of ordinary sticks, tools, or other devices of such temperature that the contact thereof with said cylinders will not crack or fracture the glass. The plate 10 is then raised by the lever 13 and the front car 25 is moved inwardly and the glass cylinder is shoved onto the plate 10, and as the glass cylinder is gradually heated in the furnacechamber it gradually spreads out, as shown in Fig. 1, until it lies fiat on the plate 10, as shown in Fig. 2. After the glass cylinder is placed on the plate 10, as above described, the plate 10 is lowered and after the cylinder has been suificiently heated and lies in the position shown in Fig. 2 the plate 10 is raised and the plate or glass is slid backwardly onto the rear car25 and may be removed from the furnace, as will be readily understood.

The casing 21 may be moved backwardly, as shown in dotted lines in Fig. 2, or it may be moved forwardly, as shown in full lines, and the only object of this is to partially or slightly heat the glass cylinders placed therein, as hereinbefore described.

Myimproved furnace may be used for treating glass for various purposes in the manufacture of numerous articles, and many changes in and modifications of the construction described may be made without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A glass-furnace provided with a central longitudinal partition forming the bottom of the furnace-chamber, a vertically-movable plate mounted-in the said bottom of the furnace-chamber, tracks or ways at the sides of the said bottom, a car mounted thereon, and means for raising and lowering said plate, said furnace-chamber being also provided at the front end thereof with doors and a conical casing placed over said doors, and open at the bottom and gratings placed therein, substantially as shown and described.

2. A glass-furnace open at both ends and provided with a central longitudinal partition above which is a furnace-chamber, a vertically-movable plate mounted in the top portion of said partition which forms the bottom of the furnace-chamber, tracks or ways at the opposite sides of the furnace-chamber, and a car mounted thereon, a vertically-movable support on which said plate is placed, a lever pivotally connected at the lower end of said support for raising and lowering the same, and a hollow conical easing at the front end and over the furnace-chamber, and the bottom of which is open and provided with gratings, substantially as shown and described.

3. A glass-furnace provided with a central horizontal partition forming the bottom of the furnace-chamber, a vertically-movable plate mounted in the said bottom of the furnacechamber centrally thereof, tracks or ways at the sides of the said bottom of the furnacechamber and projecting forwardly and backwardly therefrom, and means for raising and depressing the vertically-movable plate, substantially as shown and described.

4. A glass'furnace provided with a central horizontal partition forming the bottom of the furnace-chamber, a vertically-movable plate mounted in the said bottom of the furnace chamber centrally thereof, tracks or ways at the sides of the said bottom of the furnacechamber and projecting forwardly and backwardly therefrom, and means for raising and depressing the vertically-movable plate, and cars mounted on said tracks or ways at the front and rear ends of the furnace, substantially as shown and described.

5. A f urnace-chamber the bottom of which is provided with a cavity or recess, and a ver= tically movable plate arranged centrally thereof, tracks or ways at the opposite side of said plate and extending through the f urnacechamber and projecting at each end thereof, a burner-space at one side of said chamber and communicating therewith, and means for supplying fuel to said space, substantially as shown and described.

6. A gas-furnace,the bottom of the chamber of which is provided with a cavity or recess, a vertically-movable plate placed in said eavity or recess, means for raising and lowering said plate, a vertically-arranged casing supglass therein,said furnace-chamber being also provided at one side with a fuel-space in com munication therewith and means for supplying fuel thereto, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses-this 22d day of December, 1900.

JEAN PIERRE PUTALLAZ.

Witnesses:

F. A. STEWART, M. K. LOWERRE. 

